Code :

Code: F6-04
Description: FAX MODEM operation trouble
FAX PWB MODEM chip operation trouble
Causes: FAX PWB MODEM chip operation trouble The FAX PWB MODEM chip cannot be accessed.
Remedy: Replace the FAX PWB MODEM chip. Replace the FAX PWB.

Code: F6-21
Description: Combination error between the TEL/LIU PWB and the FAX soft switch
Combination error between the TEL/LIU PWB and the FAX PWB information (soft switch)
Causes: The destination of the installed TEL/LIU PWB differs. The FAX PWB information (soft switch) differs. TEL/LIU PWB trouble
Remedy: Check the destination of the installed TEL/LIU PWB. Check the FAX PWB information (soft switch). Replace the TEL/LIU PWB.

Code: F6-30
Description: Access error to 1-chip microprocessor on the FAX board (FAX detection)
Access error (read/write) to 1-chip microprocessor on the FAX board
Causes: Program writing error (or no writing) to the 1-chip microprocessor. 1-chip microprocessor trouble. FAX PWB 1-chip microprocessor access circuit trouble.
Remedy: Use SIM66-24 to rewrite the 1-chip microprocessor program. Replace the 1-chip microprocessor chip. When replacing, use SIM66-42 to rewrite the 1-chip microprocessor program. Replace the FAX PWB.

Code: F6-97
Description: The FAX PWB does not match with the machine model.
The FAX PWB identification model does not match with the machine model
Causes: An improper type of FAX PWB is installed to the machine.
Remedy: Replace the FAX PWB with a proper one.

Code: F6-98
Description: Combination error between the FAXBOX destination information and the machine destination information.
Combination error between the FAX PWB destination information and the machine destination information.
Causes: Combination error between the destination information written in EEPROM on the FAX PWB and the destination information of the machine (set with SIM26-6).
Remedy: 1) Check the destination of the FAX PWB. 2) Check the destination of the machine. (SIM26-6) 3) Use a proper combination of the machine and the FAX PWB.

Code: F9-91
Description: Communication error between MFP and the Printer section when booting
Causes: MFP section PWB trouble. Printer section PWB trouble Printer flash ROM trouble. MFP PWB-printer section PWB connection trouble.
Remedy: Replace the MFP PWB. Replace the printer flash ROM. Check connection between the MFP PWB and the printer section PWB

Code: H2-00
Description: Thermistor open trouble (TH_UM)
Causes: Thermistor trouble. PCU PWB trouble Connection trouble of the connector and the harness. Fusing unit not installed.
Remedy: Replace the thermistor. Replace the PCU PWB. Check connection of the connector and the harness.